CN101047607A - System and method for implementing multicast service - Google Patents
System and method for implementing multicast service Download PDFInfo
- Publication number
- CN101047607A CN101047607A CNA2006100838298A CN200610083829A CN101047607A CN 101047607 A CN101047607 A CN 101047607A CN A2006100838298 A CNA2006100838298 A CN A2006100838298A CN 200610083829 A CN200610083829 A CN 200610083829A CN 101047607 A CN101047607 A CN 101047607A
- Authority
- CN
- China
- Prior art keywords
- multicast
- service
- subsystem
- management
- terminal equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method for realizing multicast service includes using application layer gateway functional subsystem set at network side to treat application layer protocol message being used in multicast service process and being interacted between network side and terminal device and to trigger multicast transmission management unit according treatment result of application layer protocol message for carrying out load-carry network multicast path configuration-management including to set up or delete relevant multicast path.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of technology that realizes multicast service.
Background technology
Along with the fast development of the communication technology,, proposed to utilize multicasting technology to carry out the communication mode of professional transmission for alleviating the bandwidth pressure of transmission network.Described multicasting technology is meant that the sender sends the identical services content to a plurality of recipients simultaneously.Like this, because identical content only need send a getting final product to the multicast address of appointment, thereby can effectively reduce the load of professional transmit leg and transmission network, and can effectively utilize Internet resources.IPTV the carrying out of multimedia service such as (internet televisions) that appear as of described multicasting technology provides the transmission of quickness and high efficiency implementation.
In the developing multicast business procedure, in order to obtain corresponding multicast content, user as the multicast content recipient need require the router of adjacency to send the corresponding business content to local terminal by the mode that adds professional multicast group, for example, specifically can adopt IGMP (Internet Group Management Protocol) or MLD (multicast listener discovery) to add corresponding multicast group.The router of developing multicast business also needs by multicast routing protocols such as PIM-SM (sparse mode standalone protocol multicast) agreement and other router alternately to set up multicast forwarding path.Like this, need the multicast service content of transmission just can pass to the multicast content recipient from multicast source along multicast forwarding path.
IGMP or MLD agreement are two important protocol that can adopt in the developing multicast business procedure, and this agreement is the part of IP, and it operates between main frame and the router, is used to realize multicast member management and discovery.Described IGMP or MLD agreement allow to inform mutually between router and the main frame state message etc. that the operation of relevant multicast transmission requires and exchanges multicast transmission information, and for example, main frame dynamically adds or withdraws from multicast group; Simultaneously, IGMP also needs the member's changing condition by multicast group on the Routing Protocol advertised network, so that upgrade corresponding multicast routing iinformation.
The function that IGMP or MLD agreement realize comprises:
(1) main frame is by IGMP or its information of wishing adding and receiving certain particular multicast group of MLD notice of settlement local router;
(2) whether the router member that periodically inquires about certain known multicast group in the local area network (LAN) by IGMP or MLD agreement is in active state, promptly whether this network segment still exists the member who belongs to certain multicast group, that is to say, whether need to write down certain multicast group in router has the information of multicast member in this locality, with collection and the maintenance that realizes that institute's network multicast member that network concerns, thereby be convenient to issuing of information Control multicast service content that route-map writes down.
In the developing multicast business procedure, user in multicast service is in order to obtain multicast content, it must be by initiatively adding professional multicast group as the content recipient user, after the multicast bear network receives request, by the route that writes down in the routing protocol update router, and set up and safeguard dynamic forward-path, facilitate the use described forward-path and realize multicast service.
Divide based on the agreement that adopts in the developing multicast business procedure, mainly comprise two processing procedures at the management of multicast service, what at first need to carry out is the management process of service application layer, and what need afterwards to carry out is multicast transportation protocol layer-management process, wherein:
The management process of described service application layer mainly is meant the service management reciprocal process between user and the service application service device, for example, initiation of services request, professional termination request, professional Keep Alive (keep-alive) processing etc., the management process of service application layer adopts application layer protocol to carry out information interaction usually, as HTTP (HTML (Hypertext Markup Language)), SIP (session initiation protocol), RSTP (flow host-host protocol) or RDP (RDP) etc.;
Described multicast transportation protocol layer-management process is meant the process that main frame or terminal and the router that closes on are informed mutually, when the request beginning is professional, main frame or terminal need be notified and close on router adding multicast group, router is set up the multicast member relation table according to adding message, upgrades multicast forward table simultaneously.When request stops professional the time, main frame or terminal need be notified and close on router and leave multicast group, and router upgrades multicast forward table simultaneously according to the multicast member relation table of leave group message deletion appointment, stops multicast data flow and is forwarded to this main frame or terminal.
Divide based on the concrete processing of adopting in the developing multicast business procedure, mainly comprise two basic process, promptly multicast service is opened processing procedure and multicast service termination process.And, in described two basic process, can realize the management process of corresponding business application layer, but the corresponding multicast transportation protocol layer-management process of essential realization.
At first to the multicast service processing procedure of opening an account, promptly the processing procedure of user applies multicast service describes below, and as shown in Figure 1, existing multicast service application process specifically comprises following treatment step:
Step 11: the user is to service application service device application designated multicast business;
Step 12: after application server is handled user's application, confirm user's application request;
Step 13: after the user receives the Requisition Validation of application server, initiate the multicast group that IGMP JOIN (IGMP adding) message request adds appointment;
Step 14: after connection user's AN (access node) receives described request, continue to send the described message that joins request;
Be specially, AN asks by the IGMP JOIN that IGMP PROXY (igmp proxy) or IGMP SNOOPING (IGMP snooping) function receive the user, and afterwards, the multicast member of process user joins request, and, upgrade the multicast member relation table handling successfully back configuration multicast forwarding path; If the multicast group of user's request is not introduced at AN, promptly this user is the user who adds this multicast first under the AN, and then AN continuation forwarding user's multicast member joins request.
Step 15: described user's multicast member joins request to be handled step by step and is sent to IP EDGE (IP edge), be after IP EDGE receives that IGMP JOIN adds the request of designated multicast group, the configuration multicast forwarding path upgrades the multicast member relation table, continues to transmit this request;
Step 16: the user multicast group membership joins request and is transmitted step by step, arrives multicast source at last, i.e. application server, and multicast begins to send the multicast data flow data.
Again to multicast service termination process, promptly corresponding user asks to stop the multicast service process and describes below, and as shown in Figure 2, existing multicast service termination procedure specifically comprises following treatment step:
Step 21: the user stops the designated multicast service request to the service application service device;
Step 22: after application server is handled user's termination request, confirm user's request;
Step 23: the user initiates multicast member and leaves request;
After step 24:AN received broadcasting the group membership and leaving request of user, AN deleted multicast forwarding path, upgrades the multicast member relation table simultaneously, if this multicast group is last member of AN, continued the forwarding multicasting group membership and left request.
Step 25: user's multicast member leaves request and is handled step by step and be sent to IP EDGE, IPEDGE adopt with AN in identical treatment principle handle this request, with the termination of realization at this user's multicast service.
The processing procedure of the developing multicast business that is provided by above-mentioned prior art is not difficult to find out that there is following shortcoming in corresponding multicast service processing procedure:
1, need two consultative management processes in the developing multicast business procedure, one is service application layer, and another is the agreement of multicast network, and the two effective combination of being unrealized causes at the management of real network comparatively difficult;
Promptly in the developing multicast business procedure, the corresponding multicast protocol management process of essential realization between main frame or terminal and service provider network, but because the management process of application layer is transparent for network layer, multicast transportation protocol management process then is to operate in network layer, thereby cause two management processes finely not combine, but promptly be difficult to provide runing and regulatory requirement of telecommunications;
2, internet group management protocols such as existing IGMP and MLD are the agreement that safety assurance can't be provided, thereby, there is bigger security of multicast hidden danger;
For example, multicast group member management protocols such as existing IGMP and MLD do not ask to confirm the interaction mechanism (asking to add the just not corresponding affirmation response mechanism of process of multicast group as the user) of formula, this just makes at the user's of request adding authentication comparatively difficult, be unfavorable for the user who carries out multicast service is realized management, thereby, make to be difficult to provide favorable user experience for the multicast user.
Summary of the invention
The purpose of this invention is to provide a kind of system and method for realizing multicast service, thereby can realize flexible management easily, improve developing multicast service security performance at multicast service.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of system that realizes multicast service, comprise terminal equipment and be used to terminal equipment that the application server of multicast service is provided, and described system also comprises application level gateway functionality subsystem and the multicast transfer management functional subsystem that is arranged at network side, wherein
The application level gateway functionality subsystem is used for handling the application layer protocol message of developing multicast business procedure mutual between network side and terminal equipment, and triggers multicast transfer management functional subsystem according to the result of application layer protocol message;
Multicast transfer management functional subsystem is used to carry out the configuration management of bearer network multicast path, and described multicast path is sent to the path of described terminal equipment for the multicast service that application server is sent.
Described application level gateway functionality subsystem is also communicated by letter with the service subscribing Data Management Unit, and is determining that the authentication of service subscribing Data Management Unit to terminal equipment triggers described multicast transfer management functional subsystem by the back, wherein,
The service subscribing Data Management Unit, be used for the management service subscription data, under the triggering of application level gateway functionality subsystem, the terminal equipment that request adds multicast group is carried out the multicast service authentication, and will authenticate the information notice application level gateway functionality subsystem that passes through according to described service subscribing data.
Described application level gateway functionality subsystem is also communicated by letter with authentication, authentication and/or accounting server, is used for that the terminal equipment that inserts is carried out access authentication, access authentication and/or service billing and handles.
Described application level gateway functionality subsystem also with the multicast service application server communication, the application layer protocol message informing multicast service application server of sending according to the terminal equipment of receiving issues or stops multicast service.
Among the present invention, described application level gateway functionality subsystem is arranged in the access node apparatus or independently is arranged at network side.
Described multicast transfer management functional subsystem is arranged at least one network equipment, or network side independently is set.
Described application level gateway functionality subsystem comprises one or more application level gateway functionality bodies, and described application level gateway functionality body is respectively applied for the application layer protocol message of handling in the developing multicast business procedure mutual between network side and terminal equipment.
Described multicast transfer management functional subsystem comprises one or more multicast transfer management functives, and described multicast transfer management functive is respectively applied for the configuration management of carrying out the bearer network multicast path.
Also comprise keep-alive Keep Alive mechanism processing unit in the described application level gateway functionality subsystem, be used for managing the state of multicast service between terminal developing multicast business procedure application level gateway functionality subsystem and terminal equipment.
Described Keep Alive mechanism processing unit comprises inquiry timer and service inquiry unit, and:
Whether online the inquiry timer be used in terminal developing multicast business procedure control service inquiry unit regularly and carry out the mutual of monitoring terminal equipment message between the terminal equipment;
Whether online the service inquiry unit is used under the triggering of inquiry timer, regularly send to terminal equipment to be used for monitoring terminal equipment service condition query requests.
Described application level gateway functionality subsystem also comprises the inquiry waiting timer, when sending to terminal equipment, the application level gateway functionality subsystem starts this inquiry waiting timer when being used for the whether online message of monitoring terminal equipment, when receiving the response message that terminal returns, stop this inquiry waiting timer, when the inquiry waiting timer is overtime, definite business is not online, and triggers and to carry out the corresponding business processing of rolling off the production line.
Described business rolls off the production line to handle and comprises: notice multicast transfer management functional subsystem is carried out multicast group termination and ALG subsystem and is carried out the business processing of rolling off the production line.
Described multicast transfer management functional subsystem also comprises:
The Topology Management unit is used for the topology information of supervising the network;
The path configurations administrative unit is used at the developing multicast business procedure, realizes the configuration and the management of multicast transfer path,
The topology information of described supervising the network comprises the resource information management of network topology structure management of information and network and link.
Described path configurations administrative unit also comprises:
Configuration and management that the multicast path of the network element of multicast bear network is transmitted, and be used for configuration and management to the service quality QOS parameter of multicast transfer path.
The configuration of the QOS parameter of described multicast transfer path also comprises with management admits control CAC management and Resource Allocation in Networks retrieval management being connected of multicast path, and described CAC is used to judge whether multicast bear network residual resource satisfies the desired resource of QOS of multicast path to be set up.
Described multicast transfer management functional subsystem also comprises conversion unit of protocol, the agreement that the protocol conversion that is used for that the application level gateway functionality subsystem is sent is managed for the multicast bear network multicast.
The agreement of described multicast bear network multicast management comprises Internet Group Management Protocol IGMP or multicast listener discovery MLD agreement.
The present invention also provides a kind of method that realizes multicast service, comprising:
Terminal equipment sends the application layer protocol message that is used for the developing multicast business to the application level gateway functionality subsystem;
After the application level gateway functionality subsystem is received described message, trigger described multicast transfer management functional subsystem the bearer network multicast path is managed for configuration.
Described application layer messages comprises: session initiation protocol STP message, Streaming Media host-host protocol RSTP message, HTML (Hypertext Markup Language) HTTP message and/or far-end desktop protocol RDP message.
Described method also comprises:
The application level gateway functionality subsystem issues or stops multicast service according to the strategy notice multicast service application service device that is provided with.
Described method also comprises:
The application level gateway functionality subsystem authenticates to the multicast service of service subscribing Data Management Unit to the terminal equipment application;
And/or,
The application level gateway functionality subsystem carries out access authentication, access authentication and/or service billing to authentication, authentication and/or accounting server to the terminal equipment of access network to be handled.
Described method specifically comprises:
Terminal equipment sends the multicast service request/termination messages of application layer to the application level gateway functionality subsystem;
After the application level gateway functionality subsystem was received described message, notice multicast transfer management functional subsystem was carried out the configuration management operation or the deletion action of bearer network multicast path.
After described multicast transfer management functional subsystem is received the notice of application level gateway functionality subsystem, be converted to corresponding multicast transportation protocol message, and send.
Described corresponding multicast transportation protocol comprises: IGMP or MLD agreement.
Described method also comprises:
The application level gateway functionality subsystem regularly carries out interacting message between terminal equipment and terminal equipment, whether the monitoring terminal appliance services is online as a result according to described interacting message.
Adopt privacy mechanism to carry out the mutual of described application layer protocol message between described terminal equipment and the application level gateway functionality subsystem.
The configuration management operation that described multicast transfer management functional subsystem is carried out the bearer network multicast path comprises that also the connection admittance control CAC of multicast path handles and the Resource Allocation in Networks retrieval management, and described CAC is used to judge whether multicast bear network residual resource satisfies the desired resource of QOS of multicast path to be set up.
As seen from the above technical solution provided by the invention, adopt in the developing multicast business procedure of the present invention, the agreement of application layer protocol and multicast network has realized effective combination, thereby it is comparatively convenient at the management of multicast network to make, promptly by application layer protocol, operator can provide operation management flexibly.
And, owing in the process of developing multicast business, undertaken alternately by application layer protocol between terminal equipment and the network side, thereby, the fail safe that can improve multicast service widely; Simultaneously, authentication, the accounting management of the multicast service that the also feasible user who adds at request of realization of the present invention carries out are more convenient, thereby help the user who carries out multicast service is realized management, and then provide favorable user experience for the multicast user of developing multicast business.
Description of drawings
Fig. 1 is a multicast service application process schematic diagram in the prior art;
Fig. 2 is a multicast service termination procedure schematic diagram in the prior art;
Fig. 3 is the system configuration schematic diagram of realization multicast service provided by the invention;
Fig. 4 is the specific implementation schematic flow sheet one of multicast service application process provided by the invention;
Fig. 5 is the specific implementation schematic flow sheet one of multicast service termination procedure provided by the invention;
Fig. 6 is the specific implementation schematic flow sheet of multicast service keep-alive process provided by the invention;
Fig. 7 is the specific implementation schematic flow sheet two of multicast service application process provided by the invention;
Fig. 8 is the specific implementation schematic flow sheet two of multicast service termination procedure provided by the invention.
Embodiment
Core of the present invention is to introduce application level gateway functionality subsystem (ALGSS at user access network, Application layer gateway Subsystem), and multicast transfer management functional subsystem (MCMSS, Multicast Carrier Management Subsystem), based on described application level gateway functionality subsystem and multicast transfer management functional subsystem, can directly adopt application layer protocols such as SIP or HTTP to carry out alternately at user and the AN that is connected the user (access node), and no longer need to use multicast member management protocol, thereby response mechanism is confirmed in the request of having introduced in the developing multicast business procedure, to improve the experience and the internet security of user in multicast service, and operator can provide operation management flexibly by application layer protocol.
The specific implementation of the structure of system provided by the invention specifically comprises as shown in Figure 3:
(1) service subscribing data management (SSDM, Server Subscription Data Management), be used for the management service subscription data, be convenient to realize operations such as multicast service request to the user authenticates according to corresponding data information, described service subscribing data can be data messages such as user's signing service data;
(2) application level gateway functionality subsystem (ALGSS, Application layer gatewaySubsystem), be used for handling to using layer protocol, comprise the conversion process that carries on an agreement, functions such as professional pathfinding processing, described protocol conversion process specifically is when the application level gateway functionality subsystem is communicated by letter with the entity of not supporting application layer protocol, with the application layer protocol message conversion of receiving is the processing of the agreement of corresponding entity support, it specifically is when the application level gateway functionality subsystem is communicated by letter with other entities that described professional pathfinding is handled, and determines the processing procedure of the address information of other entities;
More specifically say, ALGSS mainly is in charge of the multicast service request (comprising the request of application multicast service and termination multicast service) with process user, simultaneously, can also take the forward-path of Different Strategies control multicast data flow, realize really can runing and to manage of multicast service;
Described ALGSS also is used for multicast service request message such as application that the user is sent or termination and authenticates, and authenticating by then communicating by letter with multicast transfer management functional subsystem, to carry out the professional needed subsequent treatment of developing multicast, wherein said authentication can authenticate in this locality for ALGSS, also can carry out operations such as authentication to other entities (as SSDM);
Described ALGSS also communicates by letter with authentication, authentication and/or accounting server, is used for the terminal equipment of access network is carried out access authentication, access authentication and/or corresponding business charging processing;
Described ALGSS is a logic function subsystem, specifically can be by one or more ALGF (application level gateway functionality body: Application Layer Gateway Functionality) form, be that described ALGSS comprises an independent ALGF physical unit or an equipment, perhaps comprise a plurality of ALGF physical units or equipment; When described ALGSS comprises a plurality of ALGF, accordingly each ALGF each other can be by the agency, the addressing means such as be redirected and carry out addressing.
Wherein, described ALGF can integrated (embedded) in AN, promptly realize the function of corresponding ALGF by AN; Described ALGF also can be an independent ALGF physical unit or an equipment; Perhaps, also can be by a plurality of equipment or the common ALGF that realizes of device.
In the system of the present invention; also comprise keep-alive KeepAlive mechanism processing unit in the described application level gateway functionality subsystem; be used for managing the state of multicast service between terminal developing multicast business procedure application level gateway functionality subsystem and terminal equipment; described Keep Alive mechanism processing unit comprises inquiry timer and service inquiry unit; wherein
Whether online the inquiry timer be used in terminal developing multicast business procedure control service inquiry unit regularly and carry out the mutual of monitoring terminal equipment message between the terminal equipment;
Whether online the service inquiry unit is used under the triggering of inquiry timer, regularly send to terminal equipment to be used for monitoring terminal equipment service condition query requests.
In the system of the present invention, described application level gateway functionality subsystem also comprises the inquiry waiting timer, when sending to terminal equipment, the application level gateway functionality subsystem starts this inquiry waiting timer when being used for the whether online message of monitoring terminal equipment, when receiving the response message that terminal returns, stop this inquiry waiting timer, when the inquiry waiting timer is overtime, determine that terminal equipment is not online, and trigger and to carry out corresponding business processings of rolling off the production line, described business rolls off the production line to handle and comprises: notify multicast transfer management functional subsystem to carry out multicast group termination and ALG subsystem and carry out the business processing of rolling off the production line.
(3) multicast transfer management functional subsystem (MCMSS, Multicast CarrierManagement Subsystem), be used to carry out control and management such as bearer network multicast path, QOS (service quality), topology and/or strategy, be mainly used in the configuration management of carrying out multicast path under the control of ALGSS, described configuration management comprises operational processes such as configuration or deletion multicast path;
Described MCMSS handles multicast management protocol message that ALGSS sends as IGMP etc., so that realize the respective handling in the developing multicast business procedure, as adding or leave the processing etc. of multicast group; If what ALGSS sent is not multicast management protocol message, then the message conversion that need ALGSS be sent by MCMSS is a multicast management protocol message;
MCMSS is a logic function subsystem, it specifically can be by one or more MCMF (Multicast Carrier Management Functionality, multicast transfer management functive) forms, be that one or more MCMF can form a MCMSS subsystem, each MCMF each other can be by the agency, the addressing means such as be redirected carries out addressing, to realize the communication between the MCMF.
Described MCMF can integrated (embedded) in NE (network equipment), promptly realized the function of corresponding M CMF by NE, perhaps, described MCMF can also be independent physical unit or equipment, perhaps, described MCMF can also be for being realized by a plurality of equipment or device jointly.
In the system of the present invention, described multicast transfer management functional subsystem also comprises:
The Topology Management unit is used for the topology information of supervising the network, so that offer the foundation of path configurations administrative unit as the path configurations management;
The path configurations administrative unit is used at the developing multicast business procedure, realizes the configuration and the management of multicast transfer path, and described path configurations administrative unit also comprises:
Configuration and management that the multicast path of the network element of multicast bear network is transmitted, and being used for configuration and management to the service quality QOS parameter of multicast transfer path, the configuration of the QOS parameter of described multicast transfer path also comprises with management admits the distribution retrieval management of control CAC management and Internet resources being connected of multicast path.Described CAC is used to judge whether multicast bear network residual resource satisfies the desired resource of QOS of multicast path to be set up.
In the system of the present invention, described multicast transfer management functional subsystem also comprises conversion unit of protocol, the agreement that the protocol conversion that is used for that the application level gateway functionality subsystem is sent is managed for the multicast bear network multicast, the agreement of described multicast bear network multicast management comprises Internet Group Management Protocol IGMP or multicast listener discovery MLD agreement.
(4) network attached subsystem (NASS, Network Attachment Subsystem) is used to provide the initialization of user terminal access registration and accesses network, specifically is used to provide the sign of network-level and the IP address and the authenticated user of leading subscriber to insert; NASS externally provides the inquiring user positional information by the interface of standard, be the AN at user place and the link of AN inside, place, described link comprises physical link and logical links, MCMSS just can obtain customer position information to NASS among the present invention, carry out the configuration operation of multicast path thereby be convenient to MCMSS according to customer position information, promptly determine to send to and broadcast professional path to the user.
Among the present invention, adopting the service application layer protocol to realize in the process of multicast service management by ALGSS and MCMSS, described ALGSS and MCMSS carry out multicast group member management according to user's upper-layer protocol process, corresponding management mainly comprises the multicast member management that joins request, and multicast member leaves the management of request management, multicast member state and multicast transmission passage.And, realizing in the process of multicast service management management such as operator can also authenticate multicast service, authentication, charging by ALGSS and MCMSS.
For ease of the understanding of the present invention, to the multicast member provided by the invention management that joins request, the specific implementation that multicast member leaves the processing procedure of request management and multicast member condition managing is elaborated below in conjunction with accompanying drawing.
The specific implementation flow process of multicast service application processing procedure provided by the invention specifically comprises following treatment step as shown in Figure 4:
Step 41:UE (user) begins to ask Service-Start-Req message by network to ALGSS transmission business, so that to the multicast service of network side application appointment;
In this step, what specifically adopt is the application layer protocol with request response mechanism, for example, adopts SIP or application layer protocols such as HTTP or RDP or RSTP;
After step 42:ALGSS receives user's multicast service application, initiate operations such as authentication, authentication, for example, authentication operations etc. is carried out in this user's business application at this user;
Be specially, after ALGSS receives described Service-Start-Req message, handle this user's multicast service application, promptly at first this locality is carried out in the business application and handle, manage control etc. such as message congestion, afterwards according to local collocation strategy, the business application is carried out processing such as remote authentication according to configured strategy, carry out remote authentication and handle and to select Verification System according to practical strategies, for example, choose the SSDM Verification System and authenticate or authenticate to the AS Verification System;
After step 43:ALGSS passed through business application processing, after authenticating by corresponding authentication, ALGSS notice MCMSS handled multicast and joins request;
For example, ALGSS can send request to MCMSS and add multicast group IGMP Group Join message, with request corresponding user is added corresponding multicast group;
Need to prove that in step 42 and step 43, the processing protocol that adopts as ALGSS and AS or SSDM then also needs to carry out the corresponding protocol conversion process not simultaneously on ALGSS, afterwards, the message after will changing again sends to AS or SSDM;
After step 44:MCMSS receives the adding multicast group request of ALGSS, obtain and handle the positional information of relative users;
In this step, MCMSS obtains the professional positional information method of application can be a variety of, for example, can obtain by local configuration mode, also can obtain by communicating by letter with NASS, and be to obtain the professional user position information of application in Fig. 4 by NASS;
After step 45:MCMSS gets access to user position information, carry out the configuration process of multicast path in the bearer network;
Specifically be according to MCMSS network topology, multicast member relation table; carry out the calculating and the corresponding operation of multicast path; as CAC (connect and admit control), backup or protection path processing etc.; then; the distribution channel for distribution of configuration multicast network, the distribution channel for distribution of described multicast network comprises the multicast forward table of multicast bear network element, after configuration is finished; upgrade the multicast member relation table, be about to the user and join in the corresponding multicast group.
On MCMSS, need record network topology and multicast member relation table, MCMSS network topology source method has a variety of, as obtaining manual configuration etc. by GMPLS LMP (LMP Link Manager Protocol) agreement; Described group membership's relation table is that MCMSS is according to network topology oneself management and generation; The computational methods of multicast path wherein also are a variety of, as calculating by the GMPLS agreement.
After step 46:MCMSS handled multicast and joins request, MCMSS added to ALGSS response multicast group and confirms, confirmed that content comprises but do not limit to operating result, multicast member number etc.
After step 47:ALGSS receives the MCMSS response confirmation, to UE response Requisition Validation.If apply for successfully, start professional keep Alive mechanism simultaneously.
Step 48:ALGSS is according to local policy and multicast member number, and is optional to AS transmission service dispense application request.This goes on foot nonessential step, is optional.
The specific implementation flow process of multicast service termination process provided by the invention specifically comprises following treatment step as shown in Figure 5:
Step 51:UE sends the professional request Service-Termination-Req message that stops, and described message will be through forwarded to ALGSS, to stop the multicast service of appointment;
Concrete employing is the application layer protocol with request response mechanism in this step, for example, can adopt SIP or application layer protocols such as HTTP or RDP or RSTP;
After step 52:ALGSS receives user's termination multicast service request, the termination service request of process user, carry out verification etc. as legitimacy to the user, ALGSS response confirmation user's termination service request, the local policy according to configuration stops service announcement to AS and/or transmission simultaneously;
Step 53:ALGSS notice MCMSS deletes corresponding multicast group;
Need to prove that in step 52 and step 53, when ALGSS is different with the processing protocol that AS or SSDM adopt, then also need to carry out the corresponding protocol conversion process on ALGSS, afterwards, the message after will changing again sends to AS or SSDM;
After step 54:MCMSS receives that ALGSS deletes the notice of corresponding multicast group, according to the corresponding multicast forwarding passage of multicast member relation deletion, discharge corresponding resource, upgrade the multicast member relation simultaneously, be about to relative users and from the multicast group of correspondence, delete.
In addition; whether understand terminal equipment in real time for ease of network side online; so that network side carries out operational processes such as corresponding multicast service management, accounting management; the present invention also provides the machine-processed processing procedure of Keep Alive (keep-alive) at multicast service; the specific implementation flow process of respective handling process specifically comprises following treatment step as shown in Figure 6:
Step 61:ALGSS service condition is property inquiry timer expiry periodically, and ALGSS sends the service condition query requests to the user, opens service condition inquiry waiting timer simultaneously, closes periodically property inquiry timer of service condition;
To be ALGSS send blanking time of service condition query requests to the user to the timing length of described inquiry timer, and whether the service condition inquiry request message by timed sending can detect the user online, thereby the user's online situation is monitored;
The timing length of described inquiry waiting timer is that ALGSS carries out the needed time of user's online condition monitoring process, promptly sends the maximum duration of waiting for the service condition report of returning after the described service condition query requests;
Step 62:UE receives the service condition query requests, if corresponding multicast service is still online, after UE response service status report then, ALGSS are received the service condition report that UE sends, close service condition inquiry waiting timer, and open periodically property inquiry timer of service condition;
Step 63: when ALGSS service condition periodicity property inquiry timer is overtime once more, ALGSS will send the service condition query requests to the user, open service condition inquiry waiting timer simultaneously, close periodically property inquiry timer of service condition, corresponding processing procedure is with step 61;
Step 64: when service condition inquiry waiting timer overtime, it is ALGSS does not receive UE in the time of appointment service condition report, the corresponding service that then can judge UE rolls off the production line, this moment, ALGSS need be to the business processing of rolling off the production line, as clear up relevant data record etc., also need simultaneously to MCMSS request deletion multicast group, ALGSS can also be according to the strategy of being scheduled to the announcement of rolling off the production line of AS and/or SSDM transmission business;
After step 65:MCMSS receives the message of ALGSS request deletion multicast group,, discharge corresponding resource, simultaneously, also upgrade corresponding multicast member relation according to result according to the corresponding multicast forwarding passage of multicast member relation deletion.
In the system of the present invention, described ALGSS can comprise at least one ALGF, and described ALGF each other can be by the agency, the addressing means such as be redirected and carry out addressing.Equally, described MCMSS also can comprise at least one MCMF, and a plurality of MCMF each other also can be by the agency, the addressing means such as be redirected and carry out addressing.At this moment, multicast service processing procedures such as corresponding multicast service application or termination will realize based on corresponding ALGF and MCMF.
To be example with a concrete system embodiment below, to the application or the termination procedure of multicast service describe accordingly among the present invention.Suppose that the ALGSS in this concrete system is made up of an ALGF, MCMSS is made up of a plurality of MCMF that are arranged in the different network equipments or the device, and MCMSS uses simple IGMP agreement to carry out the member and the path channel management of multicast; In the system, realize interface between MCMSS and the ALGSS near user's DSLAM (wideband digital multiplexing equipment), MSAN AN such as (MSANs), also having MCMF multicast member management and multicast channel simultaneously concurrently calculates and configuration feature, described each MCMF is distributed in each network equipment of bearer network, have the LANSWITCH (local area network (LAN) exchange) of IGMP PROXY function and have among the ROUTER (router) of PIM (Protocol Independent Multicast, Protocol Independent Multicast) routing function as distribution.
In the embodiment of above-mentioned concrete system, the specific implementation of the application request process of corresponding multicast service may further comprise the steps as shown in Figure 7:
Step 71:UE sends Service-Start-Req message, with the multicast service of application appointment;
Concrete employing is the application layer protocol with request response mechanism in this step, as, application layer protocols such as SIP or HTTP or RDP or RSTP;
Described Service-Start-Req message will be forwarded to ALGF through AN;
Step 72:ALGF receives the multicast service application that the user sends, and promptly after the Service-Start-Req message, the business application of process user, and initiate processing such as respective remote authentication operation is as carrying out processing such as authentication to the customer service application;
This step is specially, ALGF at first carries out this locality according to local collocation strategy to this multicast service application to be handled, according to configured strategy the business application is carried out processing such as remote authentication then, carrying out remote authentication handles and can select Verification System according to practical strategies, promptly select corresponding Verification System according to the processing policy of predetermined set, for example, to the authentication of SSDM Verification System or to the authentication of AS Verification System;
After step 73:ALGF passed through business application processing, ALGF notice MCMF request added multicast group, and promptly ALGF sends M Group Join message to MCMF;
Described MCMF is arranged in the AN that inserts the user, MCMF function that promptly AN is integrated at this moment;
After step 74:MCMF receives the adding multicast group request of ALGF, protocol conversion process is carried out in the adding multicast group request of ALGF, be converted to the IGMP agreement of standard, perhaps, be converted to other MCMF and carry out the agreement that follow-up multicast Business Processing adopts, then, select whether to send IGMP notice message according to multicast member relation table and multicast path strategy characteristic, described tactful characteristic comprises message congestion management control etc., also upgrade multicast member relation table simultaneously, be about to corresponding user and join in the multicast member table, be convenient to it and carry out corresponding multicast service;
Need to prove,, then in this step, need not to carry out the corresponding protocol conversion process if the IGMP agreement that adopts between MCMF and the ALGF communicates;
After step 75:MCMF handles multicast and joins request, also add and confirm, confirm that content comprises but do not limit to operating result, multicast member number etc. to ALGSS (being ALGF) response multicast group.
After step 76:ALGF receives the MCMSS response confirmation, to UE response Requisition Validation message;
In this step, if multicast service application success then starts professional keep Alive mechanism simultaneously on ALGF, the processing procedure of concrete keep Alive mechanism is not described in detail in this referring to the description of front.
Step 77:ALGF is according to local policy and multicast member relation table, and is optional to AS transmission service dispense application request, so that AS receives that described request back sends corresponding multicast service;
Certainly, provide, and can send to the user of corresponding application multicast service by corresponding multicast path the time, then can no longer carry out this step by AS if ALGF confirms corresponding multicast service.
In the embodiment of above-mentioned concrete system, the termination processing of request process of corresponding multicast service specifically may further comprise the steps as shown in Figure 8:
Step 81:UE sends Service-Termination-Req message, and described Service-Termination-Req message will be forwarded to ALGF through AN, to stop the multicast service of appointment;
Exist equally, in this step, what specifically can adopt is that the application layer protocol with request response mechanism is realized, all can be used as application layer protocols such as SIP or HTTP or RDP or RSTP;
Step 82:ALGF receives user's termination multicast service request, after being described Service-Termination-Req message, the termination service request of process user, for example user's legitimacy is carried out verification etc., ALGF response confirmation user's termination service request, simultaneously, in this step, can also send the termination service announcement to AS and/or SSDM according to the local policy of configuration, so that the multicast service termination message of relative users is notified to AS and/or SSDM, make AS or SSDM to carry out flexible management to the multicast service that this user carries out according to this information.
After the termination service request of step 83:ALGF process user was passed through, notice MCMF deleted corresponding multicast group, so that network side no longer sends corresponding multicast service to this user.
Step 84:MCMF receives that ALGF deletes the notice of corresponding multicast group, delete corresponding multicast group message by ALGF notice MCMF and carry out protocol conversion described, thereby change into the IGMP protocol message of standard, select whether to send the IGMPLEAVE message according to the multicast member relation table according to multicast path strategy characteristic, then according to the corresponding multicast forwarding passage of multicast member relation deletion, discharge resource, upgrade the multicast member relation then;
Equally, if the IGMP agreement that adopts between MCMF and the ALGF communicates, then in this step, need not to carry out the corresponding protocol conversion process.
In sum, among the present invention, because the multicast management protocol such as IGMP, MLD that operate between carrier network and the user's (being terminal or main frame) replace with the unified application layer protocol of direct use, and means such as between user's (being terminal or main frame) and ALGSS, can take to encrypt and carry out the mutual of message, therefore, can improve the safety assurance of carrier network among the present invention greatly.
In addition, because among the present invention, ALGSS and MCMSS are managing user's detailed multicast service, therefore, ALGSS is equivalent to set up one to one with MCMSS and user and is connected, make ALGSS and MCMSS to carry out on-line monitoring and tracking to the user, thus for various chargings flexibly at multicast service provide may.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (27)
1, a kind of system that realizes multicast service, comprise terminal equipment and be used to terminal equipment that the application server of multicast service is provided, it is characterized in that described system also comprises application level gateway functionality subsystem and the multicast transfer management functional subsystem that is arranged at network side, wherein
The application level gateway functionality subsystem is used for handling the application layer protocol message of developing multicast business procedure mutual between network side and terminal equipment, and triggers multicast transfer management functional subsystem according to the result of application layer protocol message;
Multicast transfer management functional subsystem is used to carry out the configuration management of bearer network multicast path, and described multicast path is sent to the path of described terminal equipment for the multicast service that application server is sent.
2, system according to claim 1, it is characterized in that, described application level gateway functionality subsystem is also communicated by letter with the service subscribing Data Management Unit, and determining that the authentication of service subscribing Data Management Unit to terminal equipment triggers described multicast transfer management functional subsystem by the back, wherein
The service subscribing Data Management Unit, be used for the management service subscription data, under the triggering of application level gateway functionality subsystem, the terminal equipment that request adds multicast group is carried out the multicast service authentication, and will authenticate the information notice application level gateway functionality subsystem that passes through according to described service subscribing data.
3, system according to claim 1 is characterized in that, described application level gateway functionality subsystem is also communicated by letter with authentication, authentication and/or accounting server, is used for that the terminal equipment that inserts is carried out access authentication, access authentication and/or service billing and handles.
4, system according to claim 1, it is characterized in that, described application level gateway functionality subsystem also with the multicast service application server communication, the application layer protocol message informing multicast service application server of sending according to the terminal equipment of receiving issues or stops multicast service.
According to each described system of claim 1 to 4, it is characterized in that 5, described application level gateway functionality subsystem is arranged in the access node apparatus or independently is arranged at network side.
According to each described system of claim 1 to 4, it is characterized in that 6, described multicast transfer management functional subsystem is arranged at least one network equipment, or network side independently is set.
7, according to each described system of claim 1 to 4, it is characterized in that, described application level gateway functionality subsystem comprises one or more application level gateway functionality bodies, and described application level gateway functionality body is respectively applied for the application layer protocol message of handling in the developing multicast business procedure mutual between network side and terminal equipment.
8, according to each described system of claim 1 to 4, it is characterized in that, described multicast transfer management functional subsystem comprises one or more multicast transfer management functives, and described multicast transfer management functive is respectively applied for the configuration management of carrying out the bearer network multicast path.
9, according to each described system of claim 1 to 4; it is characterized in that; also comprise keep-alive Keep Alive mechanism processing unit in the described application level gateway functionality subsystem, be used for managing the state of multicast service between terminal developing multicast business procedure application level gateway functionality subsystem and terminal equipment.
10, system according to claim 9 is characterized in that, described Keep Alive mechanism processing unit comprises inquiry timer and service inquiry unit, wherein,
Whether online the inquiry timer be used in terminal developing multicast business procedure control service inquiry unit regularly and carry out the mutual of monitoring terminal equipment message between the terminal equipment;
Whether online the service inquiry unit is used under the triggering of inquiry timer, regularly send to terminal equipment to be used for monitoring terminal equipment service condition query requests.
11, system according to claim 10, it is characterized in that, described application level gateway functionality subsystem also comprises the inquiry waiting timer, when sending to terminal equipment, the application level gateway functionality subsystem starts this inquiry waiting timer when being used for the whether online message of monitoring terminal equipment, when receiving the response message that terminal returns, stop this inquiry waiting timer, when inquiry waiting timer when overtime, determine that business is not online, and trigger and carry out the corresponding business processing of rolling off the production line.
12, system according to claim 11 is characterized in that, described business rolls off the production line to handle and comprises: notice multicast transfer management functional subsystem is carried out multicast group termination and ALG subsystem and is carried out the business processing of rolling off the production line.
13, system according to claim 1 is characterized in that, described multicast transfer management functional subsystem also comprises:
The Topology Management unit is used for the topology information of supervising the network;
The path configurations administrative unit is used at the developing multicast business procedure, realizes the configuration and the management of multicast transfer path,
The topology information of described supervising the network comprises the resource information management of network topology structure management of information and network and link.
14, system according to claim 13 is characterized in that, described path configurations administrative unit also comprises:
Configuration and management that the multicast path of the network element of multicast bear network is transmitted, and be used for configuration and management to the service quality QOS parameter of multicast transfer path.
15, system according to claim 14, it is characterized in that, the configuration of the QOS parameter of described multicast transfer path also comprises with management admits control CAC management and Resource Allocation in Networks retrieval management being connected of multicast path, and described CAC is used to judge whether multicast bear network residual resource satisfies the desired resource of QOS of multicast path to be set up.
16, system according to claim 1 is characterized in that, described multicast transfer management functional subsystem also comprises conversion unit of protocol, the agreement that the protocol conversion that is used for that the application level gateway functionality subsystem is sent is managed for the multicast bear network multicast.
17, system according to claim 16 is characterized in that, the agreement of described multicast bear network multicast management comprises Internet Group Management Protocol IGMP or multicast listener discovery MLD agreement.
18, a kind of method that realizes multicast service is characterized in that, comprising:
Terminal equipment sends the application layer protocol message that is used for the developing multicast business to the application level gateway functionality subsystem;
After the application level gateway functionality subsystem is received described message, trigger described multicast transfer management functional subsystem the bearer network multicast path is managed for configuration.
19, method according to claim 18 is characterized in that, described application layer messages comprises: session initiation protocol STP message, Streaming Media host-host protocol RSTP message, HTML (Hypertext Markup Language) HTTP message and/or far-end desktop protocol RDP message.
20, method according to claim 18 is characterized in that, described method also comprises:
The application level gateway functionality subsystem issues or stops multicast service according to the strategy notice multicast service application service device that is provided with.
21, method according to claim 18 is characterized in that, described method also comprises:
The application level gateway functionality subsystem authenticates to the multicast service of service subscribing Data Management Unit to the terminal equipment application;
And/or,
The application level gateway functionality subsystem carries out access authentication, access authentication and/or service billing to authentication, authentication and/or accounting server to the terminal equipment of access network to be handled.
22, according to claim 18,19,20 or 21 described methods, it is characterized in that described method specifically comprises:
Terminal equipment sends the multicast service request/termination messages of application layer to the application level gateway functionality subsystem;
After the application level gateway functionality subsystem was received described message, notice multicast transfer management functional subsystem was carried out the configuration management operation or the deletion action of bearer network multicast path.
23, method according to claim 22 is characterized in that, after described multicast transfer management functional subsystem is received the notice of application level gateway functionality subsystem, is converted to corresponding multicast transportation protocol message, and sends.
24, method according to claim 23 is characterized in that, described corresponding multicast transportation protocol comprises: IGMP or MLD agreement.
25, method according to claim 22 is characterized in that, described method also comprises:
The application level gateway functionality subsystem regularly carries out interacting message between terminal equipment and terminal equipment, whether the monitoring terminal appliance services is online as a result according to described interacting message.
26, according to claim 18,19,20 or 21 described methods, it is characterized in that, adopt privacy mechanism to carry out the mutual of described application layer protocol message between described terminal equipment and the application level gateway functionality subsystem.
27, according to claim 18,19,20 or 22 described methods, it is characterized in that, the configuration management operation that described multicast transfer management functional subsystem is carried out the bearer network multicast path comprises that also the connection admittance control CAC of multicast path handles and the Resource Allocation in Networks retrieval management, and described CAC is used to judge whether multicast bear network residual resource satisfies the desired resource of QOS of multicast path to be set up.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100838298A CN101047607A (en) | 2006-06-01 | 2006-06-01 | System and method for implementing multicast service |
| US11/753,117 US20070280236A1 (en) | 2006-06-01 | 2007-05-24 | System and method for providing multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100838298A CN101047607A (en) | 2006-06-01 | 2006-06-01 | System and method for implementing multicast service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101047607A true CN101047607A (en) | 2007-10-03 |
Family
ID=38771846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100838298A Pending CN101047607A (en) | 2006-06-01 | 2006-06-01 | System and method for implementing multicast service |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20070280236A1 (en) |
| CN (1) | CN101047607A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2204963A4 (en) * | 2007-11-20 | 2010-11-17 | Huawei Tech Co Ltd | Session monitoring method, device and system based on multicast technique |
| CN101534257B (en) * | 2009-04-16 | 2012-05-23 | 华为技术有限公司 | Method, system and equipment for processing message |
| CN102651693A (en) * | 2012-03-30 | 2012-08-29 | 上海斐讯数据通信技术有限公司 | Dual-stack multicast system and dual-stack multicast method thereof |
| CN101662427B (en) * | 2009-09-18 | 2013-01-09 | 华为技术有限公司 | Method, system and device for distributing and scheduling resource |
| CN101409704B (en) * | 2007-10-09 | 2013-06-05 | 华为技术有限公司 | Method and apparatus for processing multicast member management protocol |
| CN105247824A (en) * | 2013-05-30 | 2016-01-13 | 日本电气株式会社 | Control apparatus, communication system, relay apparatus control method and program |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177436C (en) * | 2002-02-09 | 2004-11-24 | 华为技术有限公司 | Management method of multicast users in mobile network |
| US8121124B2 (en) * | 2009-06-16 | 2012-02-21 | Calix, Inc. | Applying adaptive thresholds to multicast streams within computer networks |
| KR20110055121A (en) * | 2009-11-19 | 2011-05-25 | 삼성전자주식회사 | Method and apparatus for providing multicast service in multicast network |
| JP5543666B2 (en) * | 2010-04-30 | 2014-07-09 | インターデイジタル パテント ホールディングス インコーポレイテッド | Lightweight protocols and agents in network communications |
| US9258807B2 (en) * | 2010-05-03 | 2016-02-09 | Intel Deutschland Gmbh | Communication network device, communication terminal, and communication resource allocation methods |
| US8659994B2 (en) * | 2010-10-15 | 2014-02-25 | Fujitsu Limited | Method and system for communicating multicast traffic over protected paths |
| US9294534B2 (en) | 2012-07-18 | 2016-03-22 | Calix, Inc. | Applying heuristics to manage multicast subscriptions within computer networks |
| US9306836B2 (en) * | 2012-07-30 | 2016-04-05 | Hewlett Packard Enterprise Development Lp | Searching for multicast consumers in a network of interconnected nodes |
| CN103929331B (en) * | 2014-04-25 | 2017-12-19 | 上海斐讯数据通信技术有限公司 | The implementation method that a kind of controllable multicast CDR message timing reports |
| US11424961B2 (en) * | 2018-09-14 | 2022-08-23 | Hewlett Packard Enterprise Development Lp | Exporting the device sharing attribute for host devices from a wireless controller to a switch |
| US10904124B2 (en) * | 2018-11-07 | 2021-01-26 | International Business Machines Corporation | System and method for dynamic stopping of cloud-based provisioning requests |
| CN113840151A (en) * | 2020-06-24 | 2021-12-24 | 中国电信股份有限公司 | OTT multicast gateway scheduling method, device and system, and storage medium |
| CN114900558B (en) * | 2022-04-21 | 2024-04-19 | 厦门亿联网络技术股份有限公司 | Universal equipment management protocol control method and device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7099333B2 (en) * | 2001-03-07 | 2006-08-29 | Lucent Technologies Inc. | Automatic protocol version detection and call processing reconfiguration in a communication system |
| ATE372010T1 (en) * | 2001-10-23 | 2007-09-15 | Ericsson Telefon Ab L M | MULTICAST SUPPORT IN PACKET SWITCHED WIRELESS NETWORKS |
| ATE357785T1 (en) * | 2002-06-25 | 2007-04-15 | Cit Alcatel | METHOD AND DEVICE FOR DATA BROADCASTING IN THIRD-GENERATION NETWORKS |
| US7391724B2 (en) * | 2002-10-09 | 2008-06-24 | Spyder Navigations, L.L.C. | System and method with policy control function for multimedia broadcast/multicast system services |
| SE0300537D0 (en) * | 2003-02-28 | 2003-02-28 | Ericsson Telefon Ab L M | Signaling method |
| CN101384006B (en) * | 2003-08-25 | 2011-05-11 | 北京三星通信技术研究有限公司 | Method for supporting MBMS backward compatibility |
| US7630328B2 (en) * | 2004-08-18 | 2009-12-08 | At&T Intellectual Property, I,L.P. | SIP-based session control |
| JP4415789B2 (en) * | 2004-08-20 | 2010-02-17 | 株式会社日立製作所 | Wireless communication system |
| US7522598B2 (en) * | 2004-11-23 | 2009-04-21 | Tellabs Petaluma, Inc. | System and method of protecting an IGMP proxy |
| US8102846B2 (en) * | 2005-03-31 | 2012-01-24 | Alcatel Lucent | Method and apparatus for managing a multicast tree using a multicast tree manager and a content server |
| US7792025B2 (en) * | 2005-10-11 | 2010-09-07 | Alcatel Lucent | Multi-service session admission control |
| US20070223424A1 (en) * | 2006-03-23 | 2007-09-27 | Lucent Technologies Inc. | System and method for restricting packet data services in a wireless communications network |
-
2006
- 2006-06-01 CN CNA2006100838298A patent/CN101047607A/en active Pending
-
2007
- 2007-05-24 US US11/753,117 patent/US20070280236A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409704B (en) * | 2007-10-09 | 2013-06-05 | 华为技术有限公司 | Method and apparatus for processing multicast member management protocol |
| EP2204963A4 (en) * | 2007-11-20 | 2010-11-17 | Huawei Tech Co Ltd | Session monitoring method, device and system based on multicast technique |
| US8539088B2 (en) | 2007-11-20 | 2013-09-17 | Huawei Technologies Co., Ltd. | Session monitoring method, apparatus, and system based on multicast technologies |
| CN101534257B (en) * | 2009-04-16 | 2012-05-23 | 华为技术有限公司 | Method, system and equipment for processing message |
| CN101662427B (en) * | 2009-09-18 | 2013-01-09 | 华为技术有限公司 | Method, system and device for distributing and scheduling resource |
| CN102651693A (en) * | 2012-03-30 | 2012-08-29 | 上海斐讯数据通信技术有限公司 | Dual-stack multicast system and dual-stack multicast method thereof |
| CN102651693B (en) * | 2012-03-30 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | Two stack multi-cast system and two stack method of multicasting thereof |
| CN105247824A (en) * | 2013-05-30 | 2016-01-13 | 日本电气株式会社 | Control apparatus, communication system, relay apparatus control method and program |
| US10742539B2 (en) | 2013-05-30 | 2020-08-11 | Nec Corporation | Control apparatus, communication system, relay apparatus control method, and program |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070280236A1 (en) | 2007-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101047607A (en) | System and method for implementing multicast service | |
| CN1832447A (en) | Method for implementing user requiring mode resource preretention in net network | |
| CN1842016A (en) | Method and apparatus for realizing multiuser conference service using broadcast multicast service in wireless communication system | |
| CN1618071A (en) | Service quality setting based on time reservation | |
| CN1695364A (en) | A communication device for providing multimedia in a group communication network | |
| CN101030865A (en) | Network address conversion and/or firewall spanning platform, system and method | |
| CN1689307A (en) | A communication manager for providing multimedia in a group communication network | |
| CN1941711A (en) | Method for controlling or setting a communication session and corresponding device thereof | |
| CN101047554A (en) | Management method and system for broadband access network far-end node | |
| CN1832449A (en) | Method for implementing resource preretention of agency requir mode in next network | |
| CN1747400A (en) | System and realization for dynamic cooperating service quality in next generation network | |
| CN1870514A (en) | Method for analysing session service quality | |
| CN1852081A (en) | Method for realizing muti-part meeting through uest generation network | |
| CN1836400A (en) | Controlling data link layer elements with network layer elements | |
| CN1845527A (en) | Method and system for providing multicast service in microwave access global intercommunication system | |
| CN101047552A (en) | Distribution service management method, system and distribution authorization capacibility discrimination and authorization method, system | |
| CN1643505A (en) | Videoconference system architecture | |
| CN1503538A (en) | Data transmitting system | |
| WO2009021460A1 (en) | Method for reporting implement result of policy, network communication system and equipment | |
| CN101030921A (en) | Packet-broadcasting controlling system and method | |
| CN1889603A (en) | Click-to dial service realizing method | |
| CN1856137A (en) | Method and system for determining centrally controlled server | |
| CN1881888A (en) | Multicast controlling method and system | |
| CN1665238A (en) | Networking system for next generation network | |
| CN101051993A (en) | Method for substituting conversation mark conversation replacing method using said conversation mark substitution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071003 |